I finished an ARC Legacy powered by a 46VF and pipe and use a 6 ounce sullivan rst tank. I have no issue with time for the pattern with 10 laps at the end. Not sure if this helps but there was room for an 8 ounce rst tank as well if needed. Depends on the 60 your using and set up I suppose. I would think the 6 ounce would be enough.